How to Perform a DNS Test on the Edge Secure Web Gateway Appliance

Products

• ProxySG Software - SGOS

Issue/Introduction

Perform a DNS Test
Here are basic steps on how to test and verify status on DNS resolution from a ProxySG appliance.

This test required a DNS list to be configured on the ProxySG appliance under Management Console > Configuration > Network > DNS > New.

SSH to the ProxySG CLI, and issue the following command:

SG>test dns <Domain in question>

ProxySG#test dns example.com
Performing DNS lookup for: example.com

Sending A query for example.com to 10.0.0.10.

DNS Response data:
Official Host Name: example.com
Resolved Addresses:
  ##.###.###.##
Cache TTL: 11354, cache MISS
DNS Resolver Response: Success

     

Typical Error
The following errors are commonly seen from a DNS test:

Performing DNS lookup for: example.invalid

Sending A query for example.invalid to 10.0.0.10.
Error encountered. Response error code: Name error

Sending A query for example.invalid to 10.0.0.1.
Error encountered. Response error code: Name error
DNS Resolver Response: Host not found

If you encounter any of the errors above (considering the domain in question is valid), please contact your DNS admin to resolve the issue.

Resolution